If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Find the next number in the series below

21 32 54 87 131 ?

People put me on the table and cut me but do not eat me. What am I?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Three cars are driving on a track that forms a perfect circle and is wide enough that multiple cars can pass anytime. The car that is leading in the race right now is driving at 55 MPH and the car that is trailing at the last is going at 45 MPH. The car that is in the middle is somewhere between these two speeds.
Right now, you can assume that there is a distance of x miles between the leading car and the middle car and x miles between the middle car and the last car and also, x is not equal to 0 or 1.
The cars maintain their speed till the leading car catches up with the last car and then every car stops. In this scenario, do you think of any point when the distance between any two pairs will again be x miles i.e. the pairs will be x distance apart at the same time ?

What is the last thing you take off before bed?

In the image below, can you find the value of an angle(y)

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M